/*
 * Copyright � 2002-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace Spring.Context;

/// <summary>
/// Encapsulates the data associated with an event raised by an
/// <see cref="Spring.Context.IApplicationContext"/>.
/// </summary>
/// <author>Rod Johnson</author>
/// <author>Mark Pollack (.NET)</author>
/// <author>Griffin Caprio (.NET)</author>
/// <seealso cref="Spring.Context.IApplicationEventListener"/>
[Serializable]
public class ApplicationEventArgs : EventArgs
{
    private const long TicksAtEpoch = 621355968000000000;
    private DateTime _timestamp;

    /// <summary>
    /// Creates a new instance of the
    /// <see cref="Spring.Context.ApplicationEventArgs"/> class.
    /// </summary>
    public ApplicationEventArgs()
    {
        _timestamp = DateTime.Now;
    }

    /// <summary>
    /// The date and time when the event occured.
    /// </summary>
    /// <value>
    /// The date and time when the event occured.
    /// </value>
    public DateTime TimeStamp
    {
        get { return _timestamp; }
    }

    /// <summary>
    /// The system time in milliseconds when the event happened.
    /// </summary>
    /// <value>
    /// The system time in milliseconds when the event happened.
    /// </value>
    public long EventTimeMilliseconds
    {
        get { return (_timestamp.Ticks - TicksAtEpoch) / 10000; }
    }
}
